Blow-off valve.



i, the county 'enteil cer-- Valveeg u, cient, and entgon, auch tua will enable 'o which it oppermns to' made C23 de scffiptioh el i o skilled it, 2mal. uae 'the e v Tine inv .eg o o boiler 70m, and by he ecole-B or mud to the met inici statef- 'the prot-este Si' .ing ont oi' of the valve.

o a verni-:nl section of e, valve einesente e 'top plein Big. 3 z- V sento n detail meee 3-3 of 2; Fig. epi-1% of the valve; nig. 5 epreeents a life meut ipi'oteetoiremoved and elevation, partly in section, of

q eating d1un e neel: the e top plan v1 ,i

6 reprenento l removable lValve teim' scre'w-thf e.f in eerevecl in d. ifi proviflof. with two poite ot the Huid etsen-len trot ne two opening end 27 'nge 1:5 and M in the valve "f mounted on midi/altre @eut by etui 3.3 on iti; low-ei* face, which ite The rotation of said disk et Liiieeiun, benign the openV 'inter with the openings 'ies the valve, When the X' in motectod by the diei; -5, and come in Contact with the di' eh diei-z unive heilt?. to 'mf-mbe? l2, t

menne een in n. .socket l@ in one-guertel' tuin :Liga .t6 und. 'i7 inw oi: 3,3 and im@ s in place on the seat oi: ecoles een en?. 1: oet veen it and omost-el disposed lote 27S auf.

hg in disposed estimation et' loi' dienten on the outer face 0L ,neon 25 and member in the form o 'tint 35 is :neunte me 30. 'iln'e locking mit 35 engages en the valve stem 2O and when the lizneliet SO tohneeietl with said nut is seiewe: clown on the easing, the mit being in engagement with the shoulder 2/ the foi-ees it down on the Valve l5 and holds naif? tightly on its sent.

This outfthus conti le the :item

steam pressures fonce the valve 23 :ige-inet the oy :t steam-tight is termed, so that the pride ing; gland 28 may emot/ed :m6, the whe ifopoetetl. This is en important feature in :3. volvo. This locking nui; S5 is designed for use when filling the boiler though the Valve by zt hose connection, and the nui; then tightened down on the stern 20, which forcee the :item

' 20 down onto the disk 'valve l5 sind prevents it from leaving its seht While the boiler in l'jeng filled, and hence no sediment' can @et under the valve lo to score the seat. When steam preneur@ is ou .in the boiler, the `n .ut 35 isvloosened 'and the presente Will lioicl the disk and stem in place and prevent leakage.

A plug 40 is screwed into openings in the casing 1G and is remove-ble to clean out the boiler with e, rod. This valve is constructed to Wthntnncl the hard service to which auch 'valves are subjected to provide tot the making ot' quick repaie. zepeir the valve, the bottoni cap is taken. ofi end all of the may be temoved Without dinturbing the boiler` .l claim as my nven*ion,-

l. in a blov/o valve the combination of it valve casing having,y an outlet, a valve seat detaehobly secured therein and having n central socket :ind openings therethrough into the outlet, n dislt 'valve revolu ly mounted on said.

seat and having a depending' stud ioti in said socket, valve stem detaelmbly connected. with seid vulve and he ing a, shoulder on its upper ent?. and a lock uut engaging, said shouldei' and having means "o1: udjnstahly cooneetng it with the casing.

ln a valve, the combination of n Valve casing, "nm/ing in outlet, o. valve seat detachabiy secured therein, and having openings communicating with :mid outlet, si tubi. extension arranged opposite said vulve seat, a rlisk sul rotatably mounted on said seat und ahaving openings: therethrough to register with the openings in unid sont, zi. valve stern extending Lhl'ough sont tubulin* eusion and having means for aetucimbly engaging s dirait vulve, :md provided with nn aun-nini' shoulder to envuge :i seat in said extension, and means under the eo ol of the opez ,tor for forcing said valve stem in contact with the 'Juive to hold it tightly on its Sent.

in tes 'motif whereof i have hereunto Fei my'hund in piueoneo of two suhheribng with :.Hori.

the position o the valve casing in tio 

